Home / 3,611.14-5,416.85-1,145.90

Finding the Fourth Proportional to 3,611.14, 5,416.85 and 1,145.90

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Solution

The fourth proportional to 3,611.14, 5,416.85 and 1,145.90 is: 1,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.14 : 5,416.85 = 1,145.90 : x
  2. Step 2: Convert to fraction form
    3,611.14/5,416.85 = 1,145.90/x
  3. Step 3: Cross multiply
    3,611.14x = 5,416.85 × 1,145.90
  4. Step 4: Simplify right side
    3,611.14x = 6,207,168.42
  5. Step 5: Solve for x
    x = 6,207,168.42/3,611.14
  6. Step 6: Final answer
    x = 1,718.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.